Centrifugal machine and process of disintegrating material



. R. P. PERRY.

' CENTRIFUGAL MACHINE AND PROCESS OF DISINIE GRATING MATERIAL.

APPLICATION man Nov. I. I917.

4 1,352,623, PatentedSept. 14,1920.

Fig. 2

at I

A TTORNE Y rial No. 157,752, filed UNITED STATES PATENT OFFICE.

RAY I. PERRY, OF UPPER MONTdLAIR, NEWJERSEY, ASSIGNOR TO THE BARRETT com/nanny.- A' CORPORATION or New JERSEY.

CENTRIEUGAL MACHINE AND PROCESS OF DISINTEGRATI NG MATERIAL.

Specification of Letters Patent. Patented Sept. 14, 1920.

Application filed November 1,1917. Serial No. 199,789.

To all whom it may concern: 1

Be it known that I, RAY P. PERRY, a citizen of the United States,'residing at U per Montclair, in the county of Essex and tate of New Jersey, have invented certain new and useful Improvements in Centrifugal Machines and Processes of Disintegrating Material, of which the following is a specification. p Inmy co-pending ap lication bearing Search 27, 1917, entitled Bituminous materials in filamentary form, and processes and apparatus for making the same, of which the present case is a continuation in part,'I have disclosed an apparatus for producing shot or filaments. The apparatus'of my present invention is an improvement as to some parts on the apparatus disclosed in my co-pending application referred to above.

In operating a shot or filament-forming device of thegeneral type disclosed in my co-pending application, it is often found desirable to insure that the shot or filaments coming from the several horizontal rows of apertures will not interfere with each other. The object of my invention is to provide a construction wherein this interference will be substantially entirely obviated. Furthermore it is often desirable, especially when operating with materials of a more or less adherent nature, to provide the shot Or filaments, especially at the moment when they are extruded from the apparatus by centrifugal force and when'theyare, therefore, still in a semi-molten condition, with a coating of material, generally of a finely divided mineral substance, preferably of a silicious natureysuch as finely divided talc or soapstone. .The coating material coming in contact with the still partially molten shot or filament adheres to the same and the filament'is thereby provided with a protect ingfilm of non-adherent material.

Referring to the drawing wherein I have illustrated one embodiment'of my invention,

Figure 1 is a view partly in section and partly in elevation of the apparatus of my invention, and

Fig. 2 is a view similar to that shown in Fig. 1' but taken substantially at rightangles thereto.

1 is a container or receptacle whose horizontal dimension diminishes from'the top tothe bottom thereof, Preferably the con tainer is, as illustrated, in the form .of a truncated conical receptacle. This receptacle is provided with one or more rows of apertures 2, substantially horizontally disposed. The container 1 is driven .or rotated at any desired rate of speed by being mounted on the shaft 3which is supported in the bearing 4. Fixedly mounted on the shaft 3 a small distance above'the bearing 4, is abevel gear 5 which meshes with a corresponding bevel gear 6 which is fixed on the shaft 7 of an electric or'other motor 8. By setting the motor in operation it is obvious that the container 1 will be rotated through the mediation of the bevel gears'5 and 6.

The container 1 has a substantially annular cover 9 which cover has a substantially central circular or other opening through which the material to be formed into shot or filaments is fed into the container. While it is ossible to feed the material into the contalner 1 in a solid condition and melt it in the container by means of any suitable source of heat which may be applied to the container 1, such as a circular or other gas burner or an electric heater, I prefer in the treatment of large quantities of material to feed the material into the container 1 in an already molten or liquid condition, thereby greatly facilitating the operation of the device, and rendering possible the treatment of large quantities of material at one time. The molten material is fed through the opening 10 into the container 1 by means of the tube ent, I provide the annular inclined member 15 which is fixed to the cover 9 of the container 1 so as to rotate with the latter when the opening 16 of the inclined member 15 sow as to be slightly clear of the same. The air space 17 between the cover 9 and the inclined member 15' may serve as a heat insulating mem er to help maintain the material in a molten condition. Or, if desired, the s ace 17 may be filled with asbestos or other eat insulating material. Fastenedtc the memit is rotated. The member 11 passes through 7 holds the material with which, if desired,

the shot or filaments may be covered as ex-' truded to render the same substantially nonadherent. The covering material, which may consist of a finely divided mineral substance, preferably of a silicious nature, such as finely divided talc orsoapstone, issues through the annular opening 20 through which it is fed by the action of the moving inclined annular member 15 which moves the powdered covering material toward the opening 20. The space 19 is supplied with powdered material by means of the tubes 21 which are provided with funnels 22, and

which may have rods 23 in the tubes to loosen up the powdered material should it become clogged in the tubes. The tank, to which the tube member 11 and the member 18 are attached, is removably supported by brackets 24: under the shelf 25, or in any other convenient way.

In operation the molten shot or filamentforming material is fed from the tank 12 through the valve or stop cock 14 into the tube member 11 and thence into the container 1. The container 1 is rapidly rotated at any desired rate .of speed by the meshing bevel gears 5' and 6 which are set in motion by the motor 8. Due to the centrifugal force of the rotating container 1,.the molten material is forced or extruded through the apertures 2 in the formof shot or filaments which solidify shortly after striking the,

Due to the fact that comparatively cool air. the horizontal dimension of the container diminishes from the top to the bottom, the velocity of the shot or filaments toward'the top will be substantially greater than the velocity of the shot or filaments toward the bottom of the container.' The paths of the shot or filaments will, therefore, be substantially along the dotted 'lines indicated in Fig. 1 of the drawing. As the result of this variation ,in the horizontal dimensions of the container, as where the same is of conical form, there is brought about an increased separation of theseveral rows of shot or filaments with the result that there is less chance of the shot or filaments coming in contact with each other before they are solidified. The shot or filaments thus formed fall in a solidifiedcondition'upon the floor or other support 25' where they are gathered together and put to any desired use.

If so desired the shot or filaments may be provided with a covering of material to render the same substantially non-adherent. This is particularly desirable when work ing with such materials as the softer grades of pitch and asphalt. This may be accomto the shot or filaments, and, therefore, provides them with a coating of protective nonadherent'material. Or, if desired, the shot or filaments, as formed or thereafter, may be dropped into water and stored under the same, or may be sprayed with water as extruded. For this latter purpose water may be fed into the tubes 21 and out through the opening 20 and thence over the fila ments. a

Itmay be stated as a general rulethat where the molten material is kept at a temperature not far above its melting point, filaments will generally result; while if such temperature is considerably above such melting point, shot will generally result.

What I claim is:

1. In a device of the class described, a perforated, revoluble container in the shape of a truncated cone having the lower end closed and a cover for the upper end, a supplementary sloping cover attached to the upper end of the container, means for feeding material into the upper end of the container along the axis of said cone, and means for supplying anti-sticking material along the outside of said container.

2. In a device of the class described, a perforated, revoluble container in the shape of a truncated cone having the lower end closed and a cover for the upper end, a supplementary sloping cover attached to the upper end of the container, and a stationary plate above said container, said sloping cover and stationary plate forming achamber for anti-sticking materia 3. In a device of the class described, a perforated, revoluble container; a flat cover attached to said container; a stationary plate above said container; an inclined cover attached to said container so that the space between said fiat cover and said inclined cover constitutes a heat insulator while the space between said stationary plate and said inclined cover constitutes a chamber for anti-sticking material; and means for feeding anti-sticking material to said chamber I and thence to the outside of said container.

4. The process of disintegrating material which consists in projecting streams of molten material through an unobstructed cooling medium along different horizontal planes, the-s'tream in each plane traveling at a higher velocity than a stream in a lowerplane. 1 r

r 5. The process of disintegrating material which consists in projecting a plurality of streams of molten material in a lane of instreams of molten material in a plane of definite extent and a plurality o streams of indefinite extent and a plurality of streams 10 material in another plane of indefinite exofmaterial in a lower plane, each of said tent, each of said streams diverging from streams diverging from the streams in its the streams in its own plane and from the own plane and traveling faster than the streams in therother plane. streams in the lower plane. I

6. The process of disintegrating material In testimony whereof I aflix m si nature. 15 which consists in projecting a plurality of RAY P. E RY. 

